Chapter

Perception of Motion

Stephen Handel

in Perceptual Coherence

Published in print May 2006 | ISBN: 9780195169645
Published online September 2007 | e-ISBN: 9780199786732 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780195169645.003.0005
 Perception of Motion

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Multiple stimulus dimensions and multiple perceptual processes affect the perception of motion and the dominant one is a function of the overall context. In apparent motion configurations, the first step is to parse the “somethings” in each image, and the second is to find the correspondence between the “somethings” in each image. The perceptions reflect the physical properties of objects, yielding slow continuous motions of rigid objects that do cross paths. For the simplest one-dot configurations, the perception is multistable, alternating between plausible motions. Two kinds of visual motion have been found: first order (Fourier) motion is based on changes in illumination or color, while second order (non-Fourier) motion is based on changes in contrast. Many visual phenomena have auditory equivalents, including induction and space-time and frequency-time stream segregation trading relationships.

Keywords: first order motion; Fourier motion; second order motion; non-Fourier motion; induction; multistable perceptions; parsing/correspondence; rigid structure; stimulus induction; stream segregation; trading relationships

Chapter.  16905 words.  Illustrated.

Subjects: Cognitive Psychology

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